Oriented transfer of proteins for biosensor applications

Cedric Volcke, Ram Prasad Ghandiraman, Lourdes Basabe-Desmonts, Asif Riaz, Attilio A. Cafolla, Brian D. McCraith

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    Abstract

    The orientation of antibodies upon their immobilisation on different surfacesis a crucial factor affecting their recognition properties. This phenomenon is strongly dependent on surface properties such as composition, reactivity, wettability, roughness etc. [1-2]. Some polymeric substrates, such as Zeonor, are used in bio-medical or -technological devices, mainly because of their interesting optical properties, low production time and cost. However, their surface modification/functionalisation is more difficult to perform as compared to other widely studied metallic substrates (such as gold or silicon). Our objective is to overcome these problems by performing a two-step experiment. The first step uses the advantages of well-known modified metallic/semiconducting substrates (in particular organosilane-modified silicon) for the orientation of antibodies [3-4]. The second step consists of transferring the oriented antibodies onto a second substrate, which may have unfavourable characteristics. This transfer process is based on the template-imprinted nanostructures technique developed by Ratner et al. [5]. In this poster, we focus in particular on the transfer process of proteins from one substrate to the other.
    Original languageEnglish
    Pages (from-to)42-42
    Number of pages1
    JournalEuropean Cells and Materials
    Volume14
    Issue numberSuppl. 3
    Publication statusPublished - 2007

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